Tire Air-Presure Preparation: timing
Silly question: We are getting ready for a short journey tomorrow afternoon; is it okay to check and fill the air in the trailer tires today; or, should I wait until tomorrow? Does it really matter?
Forum Discussion
We know air pressure changes with temperature. The problem remains how to set the pressure at one temperature when the tire is expected to work at different temperatures. Constantly changing pressures as the temperatures change does not seem feasible. One day I might be up in the mountains where the morning temp is 40 degrees. I might drive down to a warmer location where the afternoon temp is in the 90s and the morning temp was 80.
I have decided to set my pressures for 70 degrees and leave them there. That means that at 80 degrees the pressure will start a degree or two over the maximum psi. On those cold mountain mornings at 40 degrees, the tire pressure will be about 4 degrees lower than the maximum rating.
I have decided to set my pressures for 70 degrees and leave them there. That means that at 80 degrees the pressure will start a degree or two over the maximum psi. On those cold mountain mornings at 40 degrees, the tire pressure will be about 4 degrees lower than the maximum rating.
